Combined stone surfacing and sawing machine



Jan. 30, A. D OLDHAM COM-BLNED S TONE SURFACING AND SAWING MACHINE 3 Sheets-Sheet 1 4.

Filed May 28 gvvuwwbo'u A .D. Old/zany Jan. 30, D. QLDHAM 1,945,490

COMBINED STONE SURFACING AND SAWING MACHINE Filed May 28, 1931 3 Sheets-Sheet 2 A .1). Ulrika/'1 Jan. 30, 1934. A. D. OLDHAM 1,945,490

COMBINED STONE SURFACING AND SAWING MACHINE Filed May 28, 1931 5 Sheets-Sheet 3 I II II L l II II ll u u 1 A 0/d/1anz/ UNITED STATES PATENT OFFICE COMBINED STONE SURFACING AND SAWING MACHINE Anthus D. Oldham, Bedford, Ind., assignor to Indiana Limestone Company, Bedford, Ind.

Application May 28, 1931. Serial No. 540,728

8 Claims. (01. 125-3) The invention to which the following descripthe latter are separated by the panels 10, and 11 tion relates comprises a machine by which may of the frame. be accomplished the combined operations of Vertically at each end of the frame isa series dressing the surface of a slab of stone and simulof guides 12 upon which are mounted saddles 13,

l taneously cutting the slab by means of a tandem 14 and 15 respectively. The saddles 13 and 14 multiple bladed rip saw, effective in both direcform part of a sliding carrier 16 upon which is tions of travel of the machine. mounted the power means for the tandem saw.

It is an object of my invention to combine a This consists in an electric motor 17 mounted maximum efiiciency for surfacing with a high on the carrier 16 and connected by means of the degree of speed of operation, adjusting the speeds fl i C p 18 the bearing p d 65 of the several parts in proportion to their indih p n l 9 passes through a j rn l be rin vidual requirements. 20 which accommodates one end of the gang saw It is a further object of my invention to design p a machine capable of surfacing limestone and at The Saw Consists of a Spindle 21 Carrying e 16 the same time producing a plurality of cuts with plurality 0f Circular Saw blades TheSe 7 a great simplicity of machine parts. The variblades are fastened in adjustable positions along ous elements of the machine are so designed as to the length of the Spindle 21 y means of the Sp be inexpensively replaced or adjusted or inter- Collars changed, The opposite end of the spindle 21 is journalled 20 It is also an object of my invention to imi h rn l arin 24 which in turn forms prove machines of this character to allow the p Of a table 25 m ted o the saddle 15. The tools to travel over the work in both directions table 25 is adjustable aXially 0f the w Sp d e of travel thereby minimizing lost motion and idle by means of the screw 6 W ich in turn is cont trolled by the hand wheel 27 and locked into posi- 25 Among the objects of my invention it will be tieh by the 100k so evident that this machine can be controlled with The Saddles 13, 14 and 15 together With the the surfacing and sawing operations independent gang e y be raised and lowered y the u each from the other and separately adjusted to teheeus Operation of the Screws 3 a d 31- carry out each operation under the most favor- These Screws rest upon thrust arin s 3 on able and eficient conditions if so desired. Howthe frame ever, the primary object of the invention is to Rotation of these Screws 2 30 a 31 is apperform successive operations on the stone simuleomphshed y means of Worm Wheels 3. taneous1y ing worms 34 on the shaft 35.

As indicating my invention 1 have Shown by The shaft is connected by means of a beveled 35 way of example in the attached drawings the gear set 35 hrough a coupling 37 a a W 90 preferred form of the machine in which; and gear Set 8 to a flexible coupling 39. The Fig 1 is a side elevation; flexible coupling 39 is driven in turn by the shaft Fig. 2 is an end elevation of the same, and of the electnc motor Fig. 3 is atop plan View of the machine Each end of the machine carries a multiple 40 Referring to the drawings in which like parts gang sawing iquipment of the .above .description' 9, are indicated by the same numerals I have shown 'Ilhe surfacing whee} or grinder 1S muunted the machineto be constructed in the following cgmrany of the machme and adapted for manner. A foundation 1 of any desired length tical adjustment between the parts of the frame.

The surfacing wheel 41 is mounted on a spindle ls P of concrete construction and the 42 which in turn is carried in the journal boxes 100 Center portlon thereof nses as table 4.3 and 44. The journal box 44 forms part of a P011 h horlzontal bed 2 upon W'mch the Stone horizontal table 45. This table has four saddles slab 3 1S Placedfor treatment by the machineas, 46 which are vertically movable in slides 4'7, 47 The foundation extends laterally to include on the frame. On the table on the opposite I-beamS 4 Which in tum form the Supports fer side from the surfacing Wheel there is mounted 105 rails 5, 5. an electric motor 48 which is connected to the The surfacing and cutting machine itself is spindle 42 through the journal box 44 by means mounted upon bridge trucks 6, 6. These trucks of a flexible coupling 49 so that the surfacing include anti-friction bearings '7, 7 and wheels 8. wheel may be driven as desired. Side standards 9 rise above the bridge trucks and The opposite journal bearing 43 is mounted in no set 81.

a carriage 50 which has opposed saddles 51, 51 for vertical adjustment. The journal box 43 is slidable in and out of the carriage 50 by means of screw shafts 52, 52. The shafts 52, 52 carry gears 53 which are operated by a pinion 54. A hand wheel 55 carries a shaft 56 which in turn carries the pinion 54. box 43 may be adjusted and locked in position by means of the lock 57 operating on the shaft of the hand wheel 55.

Similar elevating screws 53, 59, 66, 51, 62 and 63 are jo-urnalled in the frame to serve for raising and lowering the saddles upon which the surfacing wheel and driving motor are mounted. This is accomplished by means of an electric motor 64 mounted upon a part of the frame and connected to the worm gears 65 through a coupling 66. The gear 65 is connected to shafts 6'7, 68. Shaft 67 operates the elevating screw 58 by means of aworm and gear connection 69. Shaft 68 running in the opposite direction controls the elevating screws 59 and 6G by means of a similar worm and screw 69, 69.

Leading from the worm gear 65 is a coupling .70 which through shaft '71 and coupling '72 is connected to a second worm gear 73 similar to that shown at 65. The worm gear '73 is connected by means of shaft '74 and coupling 75 to a worm andgear 69 which in turn is connected with the elevating screw 61.

From the worm gear '73 the shaft 76 extends in an opposite direction beyond coupling 77. The shaft 76 operates the elevating screws 62 and 63 through worms and gears 69, 69.

The travel on the rails 5 is accomplished by means of the multiple-speed motor 78. The shaft of this motor operates through coupling '79 and the worm and gear 80 to drive the beveled gear From the latter through clutch 82 power is delivered to a shaft 83 extending from side to side of the frame. At opposite ends of the shaft 83 are bevel gears 84. The bevel gear 84 delivers power through shaft 85 to bevel gear 86 mounted near the drive wheel 8. The driving connection passes through shaft 87 and the worm carries a multiple belt sheave 90 the belts of which 91 also pass around the sheave 92. This sheave is loose upon the shaft 83 but is connected in driving engagement to it by the clutch 82 when the latter is disengaged from the bevel gear 81 allowing the latter to run free. A suitable clutch and speed control are provided for accomplishing this high speed travel.

As above described this combined device consists of a traveling carrier in which there is centrally disposed a surfacing wheel which may be either cylindrical or have such a contour as to give the stone slab the desired mould or finish. This surfacing wheel is vertically adjustable during operation and rotates at a speed under the control of the operator. As the carrier travels from end to end of the bed the surfacing wheel is followed by one of the multiple gang cutters. This cutter operates at the desired peripheral speed independent of the travel of the carrier or the operation of the surfacing wheel. The cutter may also be elevated or depressed as desired.

At the limit of travel the slab which has been surfaced and cut into strips is removed and replaced by another slab. The return movement of the carrier accomplishes the surfacing and cutting of this slab in the manner above described.

In this way the journal In this operation the cutter first used will be elevated and the one at the opposite or following end of the carrier brought into cutting position.

The device, is therefore adapted for flexible independent carrying out of the several operations.

It will be understood that numerous variations in minor details are included within the scope of the invention as defined in the following claims.

What I claim is:--

1. A stone working machine comprising a bed, a track, a truck on the track, longitudinally spaced standards on the truck, guides on the opposed sides of the standards, slides on the guides, a platform connecting certain of said slides, a shaft journaled on said platform, means for driving the shaft, a bearing mounted on certain of said slides, a rotary surfacing tool carried by the shaft and said bearing, and power operated means for adjusting the platform and bearing simultaneously.

2. A stone working machine comprising a bed, a track, a truck on the track, longitudinally spaced standards on the truck, guides on the opposed sides of the standards, slides on the guides, a platform connecting certain of said slides, a shaft journaled on said platform, means for driving the shaft, a bearing mounted on certain of said slides, a rotary surfacing tool carried by the shaft and said bearing, a feed-screw on each guide and a common operating means for said feed-screws.

3. A stone working machine comprising a bed, a track, a truck on the track, longitudinally spaced standards on the truck, guides on the opposed sides of the standards, slides on the guides, means for simultaneously adjusting the slides on the guides, a rotary surfacing tool carried on said slides, actuating means for said tool, a second series of guides on the outer ends of the standards,

slides on said second series of guides, means for simultaneously adjusting said slides, a rotary cutter carried by said slides and power actuating means for said cutter.

4. A stone working machine comprising a bed, a track, a truck on the track, longitudinally spaced standards on the truck, guides on the opposed sides of the standards, slides on the guides, means for simultaneously adjusting the slides on the guides, a rotary surfacing tool carried on said slides, actuating means for said tool,-a second series of guides on the outer ends of the standards, slides on said second series of guides, feedscrews for the slides on said last named guides, means for simultaneously operating said feedscrews, a second stone-working tool carried by said slides and power actuating means for said last named tool.

5. A stone working machine comprising a bed, a track, a truck on the track, longitudinally spaced standards on the truck, guides on the opposed sides of the standards, slides on the guides, a rotary surfacing tool carried on'the slides, actuating means for the tool, guides on the opposite outer ends of the standards, slides on said guides, a rotary tool carried on the said slides mounted on the single rail, said carrier having an extension over the support and sustained by the supplementary truck, two longitudinally spaced series of standards on the carrier and truck, and a stone-working tool transverse of the carrier and supported on opposite sides of the versely of the work and means on the carrier for actuating the tool.

8. In a stone-working machine, a stationary work-support of indetermine length, a pair of rails on one side of said support, a single rail on the opposite side of said support, a carrier mounted on said pair of rails, a supplementary truck mounted on the single rail, said carrier having an extension over the support and sustained by the supplementary truck, standards on the carrier and supplementary truck, a stone- Working tool mounted on said standards transversely of the work and power means on the carrier for moving the carrier and supplementary truck as a unit.

ANTHU S D. OLDHAM. 

